I knows some airports doesn't have federalization. I knows it was private companies where they are working at airports. I knows airports doesn't have federalized government included of SFO, MCI, and few small airports doesn't have it.

I remember that I saw privatized security companies were searching me at the international gates for bound to TLV. I remember they were searches my carryon and he wanded me before I am entrance into the gates. And no one allows to leave from gate areas due to security reason.